and 29-year-old crystal campbell. >> couldn't ask for a better daughter. can't believe this the is happening. >>reporter: dan harris reporting n.massachusetts tonight huge turn out at vigil in the dorchester neighborhood of boston. hundreds gets to remember martin richard 8-year-old boy who died. >> by the way amma will 10 to cover the bombings from boston this week. amma tweeted this picture today. taken near the blastwok scene. you cap follow her here on 7 news and on twitter at amma abc 7. >>> well the bombing have a lot of people on evenly. on capitol hill federal agents investigate a let they are tested positive for deadly poison the tiniest drop deadly. not clear when it was sent. letter intercepted fat silt in maryland where mail is routinely sent to be screened. it never reached its intended destination. that's the office of senator roger wicker. republican from mississippi. >> back here developing news out of san jose tonight. firefighters battle a fire at house that contains large amounts of ammunition. the fire started about 7:30 this evening in